Contact for underground trolleys.



Patented Sept. 3, |901. J. S. GABZUSI.

Q ONTAGT FOR UNDERGROUND TRDLLEYS. (Application led July 10, 1901.)

/N VEN TOR Jaa/n vkrzauz' TTOHNE YS (No Model.)

UNITED STATES PATENT OFFICE.-

JOSEPH SHOHAB GARZOUSI, OF NEW YORK, N. Y.

CONTACT-FORl UNDERGROUND TROLLEYS.

SPECIFICATION forming part of Letters Patent No. 682,056, dated September 3, 1901.

Application filed July l0, 1901.

T0 LZZ whom, t may concern:

Be it known that I, JOSEPH SHOHAB GAR- ZOUsI, a subject of the Sultan of Turkey, and a resident of the city of New York, borough of Manhattan, in the county and State of New York, have invented a new and Improved Contact for Underground Trolleys, of which the following is a full, clear, and exact description.

The object of the invention is to provide a new and improved contact for underground trolleys arranged to insure proper contact at all times, so as to prevent breaking of the current to the motor and the lamps of the car when passing joints, switches, and the like. The invention consists of novel features and parts and combinations of the same, as will be fully described hereinafter and then pointed out in the claims.

A practical embodiment of the invention is represented in the accompanying drawings, forming a part of this specification, in which similar characters of reference indicate corresponding parts in all the views.

Figure lis a plan View of the improvement vas applied on a plow, the latter being shown in section. Fig. 2 is a similar View of the same with the parts in a different position. Fig. 3 is an enlarged transverse section of thel same on the line 3 3 in Fig. 1, and Fig. 4 is a sectional plan view of the same on the line 4 4 in Fig. 3.

A plow or slot-bar A of any approved construction extends through a slot B into a duct C and carries at its lower end A', of insulating material, on opposite sides, sets of grooved rollers D, in which are mounted to slide longitudinally the side bars E of a contact-frame, the ends E' of which are made of insulating material and arranged to connect the side bars E with each other. On the ends E' are held contact-points F, pressed into engagement with feed wires G by the action of springs H, it being understood that two contact-points F on one side of the frame engage one of the feed-wires and the other two contact-points on the other side of the frame engage the return feed-wire. Suitable electric connection is made between the rollers D and Serial No. 67,703. (No model.)

the motor and the lamps of the car, so that the electric current passes to the motor and the lamps and is returned to the return feedwire. By having the frame arranged to slide loosely and freely on the sides of the plow A it is evident that when the car goes in the direction of the arrow a (see Fig. l) then a portion of the frame, extends rearwardly of the plow, so as to have the rear contact-points make contact with the feed-wires at the time the front contact-points pass over a joint to insure an uninterrupted circuit at the time the forward points pass over the joint. When the car passes in the opposite direction, as indicated by the arrow l) in Fig. 2, then the plow on the iirst forward motion slides along on the frame until the forward end of the plow strikes the corresponding end E and then carries the frame along, a portion of the frame extending rearward of the plow, as previously eX- plained and for the purpose mentioned.

It will be seen that by the arrangement described a positive contact is always made to insure an uninterrupted circuit, especially as two contact-points are in contact 'with the main aswell as with the return feed-wire. The bars E are sufficiently iexible to permit of conveniently bending when the plow goes around curves without danger of disconnecting the contact-points F from the wires G.

Having thus fully described my invention,

I claim as new and desire to secure by Letters Y Patent- 1. A contact for underground trolleys, comprising a contact freely slidable on a plow and having contact-points at its ends to connect with the main and the return feed-wires at the different points of their length, as set forth.

2. Acontact for underground trolleys, comprising a contact-frame having contacts on its ends and freely slidable on a plow, as set forth.

3. A Contact for underground trolleys, comprising a contact-f rame having contact-points at the ends, the frame being freely slidable on its plow, and means for limiting the sliding of the frame on the plow, as set forth.

4. A contact for underground trolleys, comprisingaframe having longitudinal bars with name to this specification in the presence of insulatef elllds, roller-bering; m th 1))low two subscribing witnesses. and in W llio are mounte to s i e sai ars, i and contact-points on'said ends of the frame JOSEI H SH01-IAB GARZOUSI' 5 and in Contact with the main and the return W'itnesses:

feed-wires, as set forth. THEO. G. HOSTER,

In testimony whereof I have signed my EVERARD B. MARSHALL. 

